We are headed to Monument Valley in a few days and I'd like to book a tour ahead of time. I've seen quite a few on TA, but am a little confused on which one would work for us. I'd like to do something at sunset and we are both in our 60's. We're in decent shape. Walking a few miles is fine, but not up to hiking. SO is a big John Wayne fan. Any recommendations? Thank you so much for your help.